(Ship from USA) 10 Piece 7.5 - 8" Long Pyrex Glass Blowing Tubes 10mm OD 6mm ID Thick Heavy Wall *GWE849F EP-21RT18140 10 piece ( 7.2 - 8 ) inch long Pyrex Glass Tubing 10mm OD 6mm ID Glass Blowing Tubes Fire Polished Ends On Both Sides-open both sides